13:11:56 CEST

Welcome to day four of the Tour de Suisse. Race leader Peter Sagan and the rest of the peloton are on their way after starting from Rheinfelden a little while ago.

13:14:05 CEST

It's another damp and miserable day out there for the riders, unfortunately but it should clear up by the end of the day.

13:17:04 CEST

There wasn't a long wait for the first attack to come. Matthew Brammeier (Dimension Data) and Jérémy Maison (FDJ) went as soon as the flag dropped. They were then joined by Lukas Jaun (Team Roth) and Nick Vander Lijke (Roompot).

13:23:16 CEST

There is just one non-starter this morning and that is BMC's Samuel Sanchez, who has developed a respiratory infection.

13:27:12 CEST

The four-man escape group has two minutes on the peloton.

13:32:05 CEST

The best placed of the escapees is FDJ's Jeremy Maison who is 3:31 down in the overall classification.

13:36:37 CEST

Peter Sagan's stage win yesterday was enough to bump him into the leader's jersey. It's only a slim lead though. This is what the overall classification looked like this morning.

13:38:55 CEST

After 20km of racing the four up front have built up a gap of just over three minutes.

13:43:39 CEST

There are only two classified climbs today for the riders and Sagan could well add his name as a Tour de Suisse stage winner for the 14th time. This is what today's stage looks like.

13:51:24 CEST

If you missed the news from earlier today, a Spanish court ruled that the 211 blood bags found in a raid during the Operacion Puerto investigation are to be handed over to the anti-doping authorities. It's yet unclear what this could mean for cycling and sport in general with the statute of limitation already at an end. Read the full story here.

13:59:52 CEST

It seems that the peloton and the break are taking their time this morning. They've covered just 30.5km over the first hour of racing and are 15 minutes behind the slowest time schedule. There has not been much change in terms of the gap, which currently stands at 3:15.

14:07:38 CEST

14:14:37 CEST

At 31, Matt Brammeier is by far and away the most experienced of the four riders in today's breakaway. The Dimension Data rider stepped up to WorldTour level in 2011 with HTC Colombia but had to move on when the team folded at the end of the year. He's a multiple national champion and won a stage of the ZLM Toer last year from a breakaway.

14:23:25 CEST

Van der Lijcke has taken the 8 points available at the top of the first climb. Jaun folled him over in second place, Maison was third and Brammeier fourth.

14:28:33 CEST

With only one other climb to come today, the lead of the mountains classification is not under threat. Antwan Tolhoek holds a commanding lead in that classification after yesterday's stage.

14:33:41 CEST

The latest time check for the escapees is 3:20. Tinkoff is leading the chase in the bunch.

14:41:33 CEST

At 22, Jeremy Maison is the youngest in the breakaway. He is riding his first season as a professional after signing a two-year deal with the FDJ squad. It's been a steep learning curve for the Frenchman but he's getting lots of practice with 30 race days under his belt already.

14:47:37 CEST

The slow pace continues and after almost two hours of racing, only 60km has been completed. A challenging headwind and some rain is not helping the situation. The other teams are more than happy to let Tinkoff take the brunt of the conditions.

14:57:55 CEST

The gap remains at just 3:20 for the four leaders, which means that Sagan would remain the race leader if the gap where to stay this way.

15:01:18 CEST

15:04:20 CEST

The riders are no 20 minutes behind schedule but the escapees have picked up the pace a little. They've extended their lead to 3:55 over the peloton.

15:13:27 CEST

Today's stage is a 193km run to Champagne. There are two intermediate sprints right near the end with bonus seconds available. Tinkoff will probably be happy to let the break stay out until they have passed through but the likes of BMC and Lotto-Soudal may want to try and bring things together beforehand to five Dillier and Roelandts a shot at toppling Sagan.

15:18:18 CEST

After starting under the rain, the weather is clearing at the finish giving the riders a chance to dry off.

15:20:16 CEST

#tourdesuisse Still more than 100 km to go and the front group has an advantage of about 4 minutes.

15:24:15 CEST

A reminder of the four riders in the breakaway today: Matthew Brammeier (Dimension Data), Jérémy Maison (FDJ) Lukas Jaun (Team Roth) and Nick Vander Lijke (Roompot-Oranje Peloton). Brammeier and Maison escaped soon after the flag dropped with the others joining them a little later.

15:33:18 CEST

Nick van der Lijke rides for Roompot this year after two years with the Belkin/LottoNL-Jumbo set-up. The 24-year-old is in his third year as a professional. He is yet to take his first professional win.

15:38:04 CEST

As the weather picks up midway through this stage, the riders are able to stretch their legs a little bit. There is some sunshine peaking through the clouds and the escape group is now 3:40 ahead, making Maison the leader on the road.

15:54:50 CEST

The gap tot he escapees has started to come down. They have just three minutes on the peloton now who seems intent on shutting this down.

15:57:27 CEST

The riders were battling with a headwind for much of the first part of this stage but that seems to have abated for them while the sun continues to reveal its self from behind the plentiful clouds.

15:59:19 CEST

Etixx-QuickStep has put men on the front to help the Tinkoff team out. Today is possibly their best shot at a stage win with Fernando Gaviria. The Colombian has been on superb form earlier this season.

16:01:11 CEST

Either a comfort break or a mechanical problem for Peter Sagan but he's back in the cars. He doesn't seem too worried though as he chats to former teammate Chris Juul Jenson. The pace is not too high right now and he's able to make it back easily.

79km remaining from 193km

16:06:48 CEST

The peloton are on bike paths at the moment and things do look very relaxed, even if they are stretched out. Swiss riders Mathias Frank and Fabian Cancellara are sharing a joke further back in the bunch as the latter has a spot of lunch.

16:09:30 CEST

Neither Frank or Cancellara will be to worried about today. It will all be about keeping their noses clean while they wait for the later stages of this race. For Frank, the race will begin when the mountains arrive tomorrow, while Cancellara will be looking to add the stage 8 time trial to his victory on day one.

16:13:27 CEST

16:15:38 CEST

The addition of Etixx tot he front of the bunch is really doing some damage to this escape group. Just 2:10 separates the peloton and the breakaway. They won't want to catch them too early because then they will have to waste energy chasing down more breaks. Perhaps we will see it level out for a little while now.

16:19:02 CEST

Leopold Konig makes his way back to his teammates near the front of the bunch after dropping back to the cars. Konig is riding his first race since February following a lingering knee injury. We spoke to him last week before he headed out to Switzerland and you can read what he had to say here.

16:23:53 CEST

We've yet to mention Lukas Jaun as we take a close look at those in the breakaway. Jaun, like Maison, is a first-year professional. Born in Biel, he is also the only home rider in the bunch. The Tour de Suisse is his first WorldTour-level race.

16:28:25 CEST

I've shed more than a few tears the past few days remembering Doug Pensinger. The sport won't be the same. https://t.co/giHVvkYy1R

16:32:23 CEST

The break continues to chug along but the peloton is getting closer and closer. With 62km to the finish, they have just 1:47.

16:39:27 CEST

The final 25km of today's stage is a very up and down affair and while we do expect a sprint finish there is still every chance that a late attack could upset the apple cart. Etixx and Tinkoff will be doing their best to make sure that doesn't happen.

56km remaining from 193km

16:41:24 CEST

The break is losing ground with each kilometre. It's don to 1:30 with a touch over 50km to go.

16:48:53 CEST

Other riders that could be a threat if it comes to a bunch gallop are Michael Matthews, Danny van Poppel, Juan Jose Lobato and Reinardt Janse Van Rensburg.

50km remaining from 193km

16:51:53 CEST

Rodrigo Contreras continues to put in the work on the front of the peloton for Etixx-QuickStep. He's been up there for at least 20km now with the Tinkoff team in his wheel. Contreras could be a threat later on in the race when it comes to stage wins. He was well up in the general classification at the Tour de San Luis in January before splitting his knee open in a heavy crash.

16:57:00 CEST

The gap dropped down to just over a minute but it has been climbing again as the peloton relax again. Peter Sagan has been chatting away with some of the Astana riders who are up alongside his Tinkoff team.

17:01:11 CEST

Most riders have stripped off the arm and leg warmers that they started the day in. Jaun is the only member of the escape group still wearing his. As the temperatures increase a little, he may be getting a little warm in those.

40km remaining from 193km

17:05:29 CEST

Contreras has slipped back a few positions in the bunch but he's keeping close tabs on the Tinkoff riders who are now setting the pace at the front.

17:07:15 CEST

The break is on a small descent and they briefly split into two groups. Maison and van der Lijke pulled out a short gap on the other two before Maison realises that they're gone. He sits up and waits for it all to come together again.

37km remaining from 193km

17:10:53 CEST

Fabian Cancellara is back in the cars and chasing back to the bunch. He stops for a chat at the Tinkoff car along the way.

34km remaining from 193km

17:15:02 CEST

Just 1:30 for the four escapees as we approach this lumpy finale.

17:18:41 CEST

#WayToRide, @rodrigo42447367! Thanks to his huge amount of work at the head of the peloton, the break is within reach. #tourdesuisse

17:23:51 CEST

After they put so much effort in today, Peter Sagan may find himself outnumbered in terms of teammates at the finish today. Not that this stopped him yesterday. In a straight sprint though, he will find it hard to beat the turn of pace of Gaviria.

17:26:13 CEST

What could trip Gaviria up, hopefully not literally, is the very tight right-hand bend in the final two hundred metres.

24km remaining from 193km

17:28:53 CEST

Jaun overcooks it on a corner and has to burn some energy chasing onto the leading group. They've got 2:10 now on the peloton.

17:32:29 CEST

The leaders pass through the intermediate sprint with little fanfare. They're not worried about the points, they just want to hold off the peloton.

17:33:45 CEST

Iljo Keisse has now taken to the front of the bunch. He's tucked down and in as aero a position as he can. This is business time for the Belgian.

19km remaining from 193km

17:35:17 CEST

The breakaway group is feeling the strain. They're just down to three riders now as Jaun drops off. He lost a lot of energy chasing back on before.

17:37:21 CEST

Keisse is doing some damage to the peloton and there are riders clinging onto the peloton for dear life. He's brought the gap back down to 1:36.

17:39:34 CEST

A big Slovakian flag on the side of the road with just under 17km to go. Sagan is a popular rider here with 13 victories at the Tour de Suisse during his career.

16km remaining from 193km

17:40:47 CEST

Jaun has been absorbed into the peloton. The remaining three breakaway riders have just 1:17 on the peloton as many more teams come forward to help.

17:43:46 CEST

A picture is worth a thousand words and there is some serious pain faces in that leading group. They are giving it their all but they have no answer for this chasing peloton. The gap is now under the one-minute mark with 14km to go.

17:46:00 CEST

15kms left as the peloton nears the last climb of #TourDeSuisse S4. @Jasperstuyven will be our go to guy for an expected bunch sprint.

17:52:27 CEST

17:53:52 CEST

These final few kilometres are quite technical but that is not halting the momentum of the peloton. Just 10 seconds now.

17:54:59 CEST

There is problems for one Etixx-QuickStep riders overcooks a corner and he won't be any more help. Looks like it might be Julian Vermote.

5km remaining from 193km

17:55:18 CEST

Maison is the first to try an attack from the breakaway group.

17:55:57 CEST

He's only got a very small gap though as Van der Lijke catches up first and then Brammeier.

3km remaining from 193km

17:56:24 CEST

There is just a stone's throw between the two groups.

17:57:03 CEST

Durbridge giving it beans on the front as the peloton brings these escapees back.

17:57:34 CEST

Durbridge only does a small turn before peeling off and letting Etixx-QuickStep pick things up again.

17:58:20 CEST

Sagan is sitting on the wheel of Gaviria, who is third in the Etixx train. Lotto-Soudal are moving forward too.

2km remaining from 193km

17:58:54 CEST

Stybar setting the pace in the peloton with Vakoc in his wheel.

17:59:42 CEST

A big left turn as they approach the flamme rouge. This is a very small group now.

18:00:02 CEST

Sprint finish

18:00:21 CEST

Richeze wins

18:01:04 CEST

Richeze was there to lead out Gaviria but he was the one who took the win. Looks like Gaviria took second with Sagan in third.

18:02:30 CEST

Richeze led the sprint through the final corner and nobody could catch him. It looked like Sagan may have held up Gaviria as they came around the corner but he had possibly left that too late anyway.

18:04:08 CEST

That will be a big boost for Richeze who was named in the Argentina team for Rio. He has had some injury trouble this season.

18:05:52 CEST

Perhaps most impressive in that finish was how Danny van Poppel managed to stay on his bike. It looked like the Sky rider touched wheels with Sagan going into that final corner. He almost slipped out, his foot unclipped and he grazed the barrier but he managed to say on his two wheels.

18:06:49 CEST

There was a moment for van Poppel where his back wheel also rose up fairly high. He's very lucky to come away safely from that.

18:24:55 CEST

18:29:36 CEST

18:31:23 CEST

That is all from our live coverage today. Tune in tomorrow for stage 5.

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